Q. Two plants ‘A’ and ‘B’ belonging to Solanaceae are observed. In plant ‘A’, the number of locules in the ovary of a flower is half of that of its carpel number. In plant B, the number of locules in the ovary of a flower is double the number of carpels. Identify the plants ‘A’ and ‘B’ respectively
A) Capsicum, Datura
B) Cestrum, Petunia
C) Withania, Solanum
D) Lycopersicon, Nicotiana
Explanation
In Datura stramonium, gynoecium is bicarpellary syncarpous, ovary superior, bilocular, becoming tetralocular due to formation of a false septa. Therefore, plant B is Datura. In Capsicum, gynoecium is bicarpellary, syncarpous, ovary superior. The cross wall ovary is unilocular in the upper part.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.